Search results for "RBAC"
showing 10 items of 740 documents
Plant species for mucilages as crops for Mediterranean environments.
2008
Analisi del biotopo di Monte Grande e linee guida per lo sviluppo sostenibile dell'area
2008
La ricerca è incentrata sulla caratterizzazione ecologico-ambientale (geologia, pedologia, bioclima, storia) dell’area di Monte Grande, con particolare riferimento ai lineamenti del paesaggio vegetale (serie di vegetazione diversificate in funzione della geologia) nonché sulla flora fanerogama, con un elenco floristico dell’ area, e sulla fauna vertebrata. L’indagine complessivamente è stata condotta secondo gli schemi procedurali utilizzati negli studi di caratterizzazione ambientale delle aree protette. Questo studio, infatti, può fornire notevoli spunti per una programmazione di recupero e di riqualificazione ambientale tenendo conto che i risultati ottenuti dimostrano che il sito di Mon…
Prove di coltivazione di Hypericum perforatum L. in ambiente mediterraneo
2014
La richiesta di Hypericum perforatum da parte dell'industria farmaceutica e cosmetica, sia come droga grezza che come derivati di prima trasformazione, in questi ultimi anni si sta incrementando mentre la sua disponibilità commerciale appare ancora piuttosto limitata. La possibilità di introduzione negli ordinamenti colturali mediterranei delle diverse specie di Hypericum è divenuta dunque potenzialmente assai interessante, ma richiede ancora la definizione di numerosi aspetti relativi alla risposta delle specie alla coltivazione, sia in pieno campo che in vaso, soprattutto quando questa viene condotta in ambienti diversi da quelli di vegetazione naturale. L'approfondimento di tali aspetti …
Influence of enzyme-aided extraction and ultrasonication on the phenolics content and antioxidant activity of Paeonia officinalis L. petals
2020
Peony is a less utilized herbaceous plant of ornamental and medicinal relevance. The petals are rich in bioactive phenolics and hence, the development of efficient extraction is required for maximum recovery and bioactivity. In this study, the optimal conditions for the ultrasound-assisted extraction of peony phenolics were first investigated by comparing to conventional extraction and testing the data fit by mathematical models (linear, two factor interactions, quadratic) followed by investigation of cellulase pre-treatment combined with ultrasonication. High amounts of flavonoids, phenolics and tannins were extracted in 30 min under ultrasound conditions of 150 W, 40 kHz, 50 % amplitude, …
Kundmannia sicula (L.) DC: a rich source of germacrene D
2017
AbstractObjective: Kundmannia sicula is an herbaceous plant belonging to the family Apiaceae and is distributed in the Mediterranean coastal areas where it occurs in arid places. In this work, we have analysed the essential oil distilled from the aerial parts of K. sicula from Sicily (Italy) and its biological activity. Methods: GC-MS was used to analyze the chemical composition, whereas its antioxidant capacity and cytotoxicity on three human tumour cells (A375, MDA MB-231 and HCT 116) were evaluated by DPPH, ABTS, FRAP and MTT methods, respectively. Result: The essential oil resulted very rich of the sesquiterpene hydrocarbon germacrene D (81.2%). Moreover, the K. sicula oil displayed rel…
Phytochemical, ecological and antioxidant evaluation of wild Sicilian thyme: Thymbra capitata (L.) Cav.
2016
In a broad survey conducted throughout the Sicily region, 45 different sites were identified where thyme grows wild. All the biotypes collected were classified as Thymbra capitata (L.) Cav. (syn. Thymus capitatus (L.) Hoffmanns. & Link). Cluster analysis based on the main morphological characteristics of the plant led to the division of the biotypes into 3 major groups. All samples were analyzed for their secondary phytochemical metabolites identified in the extracts and the essential oils. LC-UV-DAD/ESI-MS and GC-FID/GC-MS have been applied to characterize the extracts and the essential oils, respectively. In the extracts, 15 flavonoid derivatives with taxifolin-di-O-glucoside and thymusin…
Serum antioxidant capacity and peroxide level of seven healthy subjects after consumption of different foods
2016
This article reports experimental data related to the research article entitled “Different effectiveness of two pastas supplemented with either lipophilic or hydrophilic/phenolic antioxidants in affecting serum as evaluated by the novel Antioxidant/Oxidant Balance approach” (M.N. Laus, M. Soccio, M. Alfarano, A. Pasqualone, M.S. Lenucci, G. Di Miceli, D. Pastore, 2016) [1]. Antioxidant status of blood serum of seven healthy subjects was evaluated during four hours after consumption of two functional pastas, supplemented with either bran oleoresin or bran water extract obtained from durum wheat. For comparison, the effect of a non-supplemented reference pasta was also evaluated, as well as t…
Antispasmodic effect of 4'-methylepigallocatechin on guinea pig ileum.
2012
AbstractThe antispasmodic effect of 4′-methylepigallocatechin (MEC), which was isolated from Maytenus rigida Mart (Celestraceae), was investigated in vitro in guinea pig intestinal segments. In the isolated ileum, MEC (1 nM–100μM) did not modify the ileal spontaneous tonus or the electrically elicited contractions. MEC (8μM) significantly (p<0.01) reduced the submaximal contractions induced by histamine (2μM), carbachol (100μM) and BaCl2 (0.03M). An additive relaxing action (p<0.001) was observed by co-incubation of verapamil (10 nM) and MEC (8μM). Although MEC (1nM–100μM) did not modify the contractions elicited by 60mM KCl, it significantly reduced the CaCl2 contractile response without c…
Herbicidal potential of aqueous extracts from Melia azedarach L., Artemisia arborescens L., Rhus coriaria L. and Lantana camara L.
2017
In the search for new strategies for weed management in agricultural systems, a great interest is to use the plant extracts to replace or integrate, chemical weed control. Two experiments were done to test the effects of plant water extracts from Chinaberry (Melia azedarach L.), Tree Wormwood (Artemisia arborescens (Vaill.) L.), Sicilian Sumac (Rhus coriaria L.) and Lantana (Lantana camara L.) on seed germination of Rocket (Eruca sativa Mill.), Rapeseed (Brassica napus L.), Bladderflower (Araujia sericifera Brot.) and Psyllium (Plantago psyllium L). The water extracts (pure and 50% mixtures) from the donor species were applied on seeds of recipient plants. In second experiment in pots, thes…
"Role of Arbuscular Mycorrhizal Fungi in Nutrient Uptake and Growth of Durum Wheat"
Soil microbiome is involved at different levels in the food web, in bio-geochemical nutrient cycles and in several interactions with plants. Based on its key role in the agro-ecosystem processes, the soil microbiome has been identified as one of the principal factors in an agriculture addressed to the ecological intensification. Among the several relationships established between plants and soil microorganisms, arbuscular mycorrhizal (AM) symbiosis is the most widespread. Two out of three of all plant taxa (among others the main crops) are involved in the AM symbiosis which takes place between the plant root system and arbuscular mycorrhizal fungi (AMF), a monophyletic group of fungi belong…